What it is and where it sits
The Omron CS1W-DA041 is a CS1W-series analog output module carrying 4 analog outputs on a backplane-mount form factor with screw-terminal wiring, intended for use with the CS Series PLC platform. It is an Output Module with 4 analog channels, screw terminals, and approvals CE, cULus, and NK.
Fit on the rack
The module drops onto the CS1W backplane next to the CPU and existing I/O — mounting is backplane and termination is screw, so the panel-side wiring footprint matches the rest of the CS1W family and integrates with CS Series PLCs without re-engineering the rack layout.